APA-Zitierstil (7. Ausg.)

(1987). Shrubs and trees of the Southwest Uplands (4. print.). Southwest Parks and Monuments Assoc.

Chicago-Zitierstil (17. Ausg.)

Shrubs and Trees of the Southwest Uplands. 4. print. Tucson, Ariz: Southwest Parks and Monuments Assoc, 1987.

MLA-Zitierstil (9. Ausg.)

Shrubs and Trees of the Southwest Uplands. 4. print. Southwest Parks and Monuments Assoc, 1987.